1. Chemistry 20 Lesson 3 Naming compounds /188 Name e.g. strontium and arsenic strontium arsenide Sr 3 As 2 (s) a) silver and iodine silver iodide AgI (s) b) magnesium and oxygen magnesium oxide MgO (s) c) magnesium and bromine magnesium bromide MgBr 2 (s) d) calcium and nitrogen calcium nitride Ca 3 N 2 (s) e) zinc and selenium zinc selenide ZnSe (s) f) sodium and sulfur sodium sulfide Na 2 S (s) g) barium and phosphorus barium phosphide Ba 3 P 2 (s) h) aluminium and fluorine aluminum fluoride AlF 3 (s) i) potassium and chlorine potassium chloride KCl (s) j) silver and oxygen silver oxide Ag 2 O (s) 2. Name e.g. niobium and oxygen niobium (V) oxide Nb 2 O 5 (s) a) iron and sulfur iron (III) sulfide Fe 2 S 3 (s) b) copper and oxygen copper (II) oxide CuO (s) c) manganese and fluorine manganese (II) fluoride MnF 2 (s) d) gold and nitrogen gold (III) nitride AuN (s) e) chromium and chlorine chromium (III) chloride CrCl 3 (s) f) platinum and phosphorus platinum (IV) phosphide Pt 3 P 4 (s) g) nickel and oxygen nickel (II) oxide NiO (s) h) cobalt and bromine cobalt (II) bromide CoBr 2 (s) i) tungsten and iodine tungsten (VI) iodide WI 6 (s) j) manganese and sulfur manganese (II) sulfide MnS (s) Dr. Ron Licht 3-1
3. Complete the following table. COMBINE FORMULA NAME iron (II) & nitrate Fe(NO 3 ) 2 (s) iron (II) nitrate aluminium & nitrate Al(NO 3 ) 3 (s) aluminum nitrate sodium & sulfate Na 2 SO 4 (s) sodium sulfate lead (IV) & sulfate Pb(SO 4 ) 2 (s) lead (IV) sulfate magnesium & carbonate MgCO 3 (s) magnesium carbonate gold (III) & sulfite Au 2 (SO 3 ) 3 (s) gold (III) sulfite zinc & hydrogen carbonate Zn(HCO 3 ) 2 (s) zinc hydrogen carbonate ammonium & nitrate NH 4 NO 3 (s) ammonium nitrate copper (I) & phosphate Cu 3 PO 4 (s) copper (I) phosphate silver & hydroxide AgOH (s) silver hydroxide aluminium & hydroxide Al(OH) 3 (s) aluminium hydroxide lead (II) & phosphate Pb 3 (PO 4 ) 2 (s) lead (II) phosphate potassium & acetate KCH 3 COO (s) potassium acetate manganese (V) & sulfate Mn 2 (SO 4 ) 5 (s) manganese (V) sulfate Dr. Ron Licht 3-2
air pollutants 4. Complete the following table. Description or Use [for interest only] e.g., CCl 4 toxic cleaning fluid and solvent 1. N 2 78.03% nitrogen 2. O 2 20.99% oxygen 3. Ar composition of air 0.94% argon Name of Compound carbon tetrachloride 4. CO 2 0.035% carbon dioxide 5. Ne, Kr 0.0016% other noble gases 6. NO in automobile exhaust nitrogen monoxide 7. NO 2 Los Angeles-type smog nitrogen dioxide 8. SO 2 London-type smog sulfur dioxide 9. SO 3 becomes sulfuric acid sulphur trioxide 10. CO colorless, oderless poison carbon monoxide 11. O 3 good in upper atmosphere ozone 12. C 2 H 5 OH grain alcohol, ethyl alcohol ethanol 13. C 12 H 22 O 11 table sugar sucrose 14. S 8 yellow solid in Group 16 sulfur 15. P 4 O 10 oxides formed by burning tetraphosphorous decaoxide 16. P 4 O 6 white phosphorus in air tetraphosphorous hexaoxide 17. ClO 2 chlorination of water chlorine dioxide 18. CH 3 OH methyl alcohol, methyl hydrate methanol 19. P 4 a white solid phosphorus 20. NH 3 a cleaner when dissolved in water ammonia 21. CH 4 85-95% of natural gas methane 22. HCl a gas; in water is hydrochloric hydrogen chloride acid 23. N 2 O laughing gas, anaesthetic dinitrogen oxide 24. I 2 tincture of iodine in alcohol iodine 25. H 2 O the most common solvent water Dr. Ron Licht 3-3
5. Complete the following table. Chemical Description or Use [for Interest only] Name of Compound e.g. CaCl 2 (s) white solid; wetting agent calcium chloride 1. KI dietary supplement for iodine potassium iodide 2. MgO (s) white powder; magnesium ore magnesium oxide 3. AlCl 3 antiperspirant aluminum chloride 4. NaBr (s) in Epsom Salts sodium bromide 5. Al 2 O 3 (s) whiting; aluminum ore aluminum oxide 6. Li 3 N black; lithium reacts with air lithium nitride 7. CaO (s) white powder; quicklime calcium oxide 8. BaCl 2 white solid like CaCl 2 barium chloride 9. NaCl white solid; table salt sodium chloride 10. ZnO (s) protective oxide on zinc metal zinc oxide 11. AgBr photographic emulsion silver bromide 12. MgH 2 magnesium reacts with hydrogen magnesium hydride 13. MgCl 2 11 % of minerals in sea water magnesium chloride 14. ZnCl 2 in soldering paste zinc chloride 15. Ag 2 S (s) argentite (silver ore) silver sulfide 16. KCl potash (fertilizer) potassium chloride 17. CaF 2 (s) fluorite (pretty mauve crystals) calcium fluoride 18. Na 2 S for toning pictures brown sodium sulfide 19. CaH 2 (s) preparation of hydrogen calcium hydride 20. ZnS zinc blende (zinc ore) zinc sulfide Dr. Ron Licht 3-4
6. Complete the following table. Chemical Description or Use [for interest only] Name of Compound e.g., Cu 2 S copper ore (chalcocite) copper(i) sulfide 1. UO 2 uranium ore (uraninite) uranium (IV) oxide 2. PbS 2 lead ore (galena) lead (IV) sulfide 3. SnO 2 tin ore (cassiterite) tin (IV) oxide 4. MnO 2 manganese ore (pyrolusite) manganese (IV) oxide 5. Sb 2 S 3 antimony ore (stibnite) antimony (III) sulfide 6. FeO iron ore (hematite) iron (II) oxide 7. HgS mercury ore (cinnabar) mercury (II) sulfide 8. MoS 2 molybdenum ore (molybdenite) molybdenum (IV) sulfide 9. CuS copper ore (chalcopyrite) copper (II) sulfide 10. FeS also in chalcopyrite iron (II) sulfide 11. PbO 2 electrode In car battery lead (IV) oxide 12. HgO laboratory preparation of oxygen mercury (II) oxide 13. V 2 O 5 a common catalyst vanadium (V) oxide 14. SnF 2 toothpaste additive tin (II) fluoride 15. Cr 2 O 3 a green paint pigment chromium (III) oxide 16. TiO 2 a white paint pigment titanium (IV) oxide 17. AuCl 3 gold tinting of pictures gold (III) chloride 18. UF 6 separating types of U atoms uranium (VI) fluoride 19. NiBr 2 forms a green solution nickel (II) bromide 20. CoCl 2 forms a pink solution cobalt (II) chloride Dr. Ron Licht 3-5
7. Complete the following table. i or m Chemical Name of Compound 1. i K 2 CO 3 potassium carbonate 2. i (NH 4 ) 2 S ammonium sulfide 3. i Ca(OH) 2 calcium hydroxide 4. i MgSiO 3 magnesium silicate 5. i Fe(ClO 2 ) 2 iron (II) chlorite 6. i Cr(NO 3 ) 3 chromium (III) nitrate 7. i K 2 Cr 2 O 7 potassium dichromate 8. m SO 3 sulphur trioxide 9. i NaNO 2 sodium nitrite 10. i (NH 4 ) 2 SO 4 ammonium sulfate 11. i NaHCO 3 sodium hydrogen carbonate 12. i K 3 PO 4 potassium phosphate 13. i K 2 OOCCOO potassium oxalate 14. m NH 3 ammonia 15. i NaNO 3 sodium nitrate 16. i KMnO 4 potassium permanganate 17. i Na 2 S 2 O 3 sodium thiosulfate 18. m CO 2 carbon dioxide 19. i Ba(ClO 4 ) 2 barium perchlorate 20. i RbHS rubidium hydrogen sulfide 21. i KCN potassium cyanide 22. i NH 4 H 2 PO 4 ammonium dihydrogen phosphate 23. i NaHSO 3 sodium hydrogen sulfite 24. i Na 2 SO 4 sodium sulfate 25. i KSCN potassium thiocyanate Dr. Ron Licht 3-6
8. Complete the following table. e.g., Name of Hydrate Common Name, Use or Description copper (II) sulfate pentahydrate blue vitriol, bluestone, copper plating, blue solid CuSO 4 5H 2 O 1. magnesium sulphate heptahydrate 2. sodium carbonate decahydrate 3. magnesium chloride hexahydrate 4. barium chloride dihydrate Epsom salts, white solid explosives, matches washing soda, soda ash, water softener, white solid white solid, fireproofing wood, disinfectants, parchment paper white solid, pigments, dyeing fabrics, tanning leather MgSO 4 7H 2 O Na 2 CO 3 10H 2 O MgCl 2 6H 2 O BaCl 2 2H 2 O 5. cadmium nitrate tetrahydrate white solid, photographic emulsions Cd(NO 3 ) 2 4H 2 O 6. zinc chloride hexahydrate 7. zinc sulfate heptahydrate 8. lithium chloride tetrahydrate 9. sodium thosulfate pentahydrate 10. cobalt (II) chloride hexahydrate white solid, embalming material, fireproofing lumber, vulcanizing white solid, clarifying glue, preserving wood and skins white solid, soldering aluminum, in fireworks photographic hypo, antichlor, white solid pink solid, humidity and water indicator, foam stabilizer in beer ZnCl 2 6H 2 O ZnSO 4 7H 2 O LiCl 4H 2 O Na 2 S 2 O 3 5H 2 O CoCl 2 6H 2 O 11. aluminum chloride hexahydrate white solid, antiperspirant AlCl 3 6H 2 O 12. calcium chloride dihydrate de-icer used on icy highways, added to cement mixtures to prevent freezing CaCl 2 2H 2 O 13. barium hydroxide octahydrate 14. nickel (II) chloride hexahydrate 15. sodium sulphate decahydrate white solid, manufacture of glass, water softener green solid, absorbent for ammonia in gas masks Glauber's salt (a medicine), white solid, drying agent Ba(OH) 2 8H 2 O NiCl 2 6H 2 O Na 2 SO 4 10H 2 O Dr. Ron Licht 3-7
9. Complete the following table. Classify the substance as ionic or molecular (i or m) in the first column. Use a subscript to indicate the state of matter of each substance (s, l, or g at room temperature). i or m Chemical Name of Compound i or m Chemical Name of Compound 1. i Al(OH) 3 aluminum hydroxide 26. i MgSO 4 7H 2 O magnesium sulfate heptahydrate 2. i Na 2 SO 4 10H 2 O sodium sulfate 27. i Ca(OH) 2 calcium hydroxide decahydrate 3. i NaNO 3 6H 2 O sodium nitrate 28. i Na 2 S 2 O 3 sodium thiosulfate hexahydrate 4. i Al 3 (SO 4 ) 3 aluminum sulphate 29. i CaO calcium oxide 5. i CaCl 2 6H 2 O calcium chloride 30. i CuSO 4 5H 2 O copper (II) sulfate hexahydrate pentahydrate 6. i NH 4 NO 3 ammonium nitrate 31. m S 8 sulfur 7. m PH 3 phosphorus trihydride 32. m BrH 6 (g) bromine hexahydride 8. m N 2 O 4 (g) dinitrogen tetraoxide 33. i K 2 Cr 2 O 7 potassium dichromate 9. m CH 4 methane 34. m P 4 phosphorus 10. i K 2 SO 4 potassium sulphate 35. m SO 3 sulphur trioxide 11. i Fr 3 PO 4 francium phosphate 36. i NaClO 3 sodium chlorate 12. i Bi 3 (BO 3 ) 5 bismuth (V) borate 37. i Na 2 SiO 3 sodium silicate 13. i (NH 4 ) 2 SO 4 ammonium sulphate 38. m CH 3 OH methanol 14. i SnF 4 tin (IV) fluoride 39. m Cl 2 chlorine 15. m XeBr 6 xenon hexabromide 40. i PbSO 4 lead (II) sulfate 16. i PbO 2 lead (IV) oxide 41. i Ca(HCO 3 ) 2 calcium hydrogen carbonate 17. m SiO 2 silicon dioxide 42. m NCl 3 nitrogen trichloride 18. i NaClO sodium hypochlorite 43. i NaHSO 3 sodium hydrogen sulfite 19. i KMnO 4 potassium 44. m CO carbon monoxide permanganate 20. i KNO 3 potassium nitrate 45. m H 2 Se dihydrogen selenide 21. i K 2 CO 3 2H 2 O potassium carbonate 46. m SiC silicon carbide dihydrate 22. m HF hydrogen fluoride 47. i AlPO 4 aluminum phosphate 23. m H 2 S (g ) hydrogen sulfide 48. i LiNO 3 lithium nitrate 24. i NaOH sodium hydroxide 49. m SF 2 sulphur difluoride 25. i NaHSO 4 sodium hydrogen sulphate 50. m H 2 O 2 (aq) hydrogen peroxide Dr. Ron Licht 3-8